Superb Parallel Cable: Ugreen USB to DB25 adapter cable is ideal for connecting USB-equipped desktop or notebook computers to a parallel printer, inkjet, laser, POS machines, label printers, cash register and scanner with DB25 parallel interface. Please note the product was not compatible with a Zip Drive.(Note:This item will not serve as LPT Port) Fast Data Transfer: The DB25 Converter supports data transfer speed up to 12Mbps, fully compliant with USB 1.1/2.0 and IEEE 1284 specifications. Driver Free: Plug&Play, no driver installation is required. No external power adapter needed. Support bi-directional data transfer over parallel port.